Are there certain default configurations within storage devices (such as IBM System Storage DS5020 Express) for RAID 5 and RAID 10? [tried to find if there were by reading whitepaper for DS5020, but couldn't find any info on this]

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I did not find any docs on RAID 10 configurations. Can you please link me to some of them.
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rrazdNov 8 '12 at 7:06

Further, I did not find any docs concerning the DS5020 Express storage system and if it has default configurations for RAID 5, and RAID 10..... maybe you can give me some links...
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rrazdNov 8 '12 at 7:07

You will rather not find the term "RAID 10" in IBM documentation. What you end up doing is creating a "RAID 1" array with the number of devices you need to have in Storage Manager. From the previously mentioned Implementation and Best Practices Guide:

Note that unlike the IBM RAID storage controllers for xSeries servers, the DS line does not support RAID 1e which would allow using an odd number of drives in a 50%-redundancy configuration. Also interesting to know is that the IBM DS 3000/4000/5000 series have been designed and manufactured by LSI (now LSI-Engenio and a division of NetApp) and are OEM-labeled by IBM, so documentation for the LSI Engenio 4900 would mostly apply to the DS 5020 as well.